A dataset provided by the European Space Agency

Name 014733
Title The missing soft X-ray luminosity in cluster cooling flows


DOI https://doi.org/10.5270/esa-wln0yz5
Author Prof Andrew Fabian
Description Recent X-ray spectra of cluster cooling flows, particularly RGS spectra, have shown that the mass cooling rate is much smaller than previously estimated, with little emission seen from gas cooling below 1 keV. The expected soft X-ray luminosity is missing. Why the inner gas is so cool (20-30 per cent of the virial temperature) yet apparently not cooling is a puzzle, which has ramifications for galaxy formation. We propose deep RGS observations of A2597, A1835 and A1795 to resolve this important problem.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-06-27T07:38:12Z/2003-07-30T20:05:30Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations.
Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2004-10-26T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-10-26T00:00:00Z, 014733, 17.56_20190403_1200. https://doi.org/10.5270/esa-wln0yz5